Carter Burwell confirmed that he had written “Renesmee’s Lullaby” for Breaking Dawn and that Robert Pattinson would be filmed playing it. I’m assuming this means it will pretty much be like in Twilight where you can see Rob playing the piano. You can see his tweet below. The twitter account was confirmed by TwiExaminer (Thanks Amanda!)

Carter Burwell : “Just wrote “Renesmee’s Lullaby”. Rob Pattinson will play it on camera this week.”